Problem 2 | Small-Signal Circuit Setup and Analysis (a) amplifiers in a cascade configuration. Assume all capacitors are large at the frequency of interest. Assume that LAMBDA= 0. Sketch and label a small-signal model for this circuit which consists of two Common Source (b) Derive an equation for the voltage gain defined by A, = Vour/V, R1 R3 C2 R4 R5 M1 Vout VDD C1 Vs R2

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Differential amplifier

There are two amplifying stages with common degeneration in a differential amplifier.